... Finish thickness: 4.0m Min Hot:0.5mm 12 Layer Telecommunication PCB Specifications:PC Single / Double Sided Immersion Gold PCB B ... a wide range of High-tech industries such as: LED, telecommunication, computer application, lighting, game machine, industrial control, power, automobile and ... : ROHS, UL, ISO9001-2000, ISO14001Factory direct pricePaypal available 12 Layer Telecommunication PCB